Ternary complex formation of the nickel(II), 2,2’-bipyridine, 1,10’-Phenanthroline and some aminoacids

Autor:	Yoselin Jara, Lino Hernández, Vito Lubes, Waleska Madden, Mary Lorena Araujo
Rok vydání:	2021
Předmět:	Phenanthroline chemistry.chemical_element Condensed Matter Physics 2 2'-Bipyridine Electronic Optical and Magnetic Materials chemistry.chemical_compound Nickel chemistry Polymer chemistry Genetic algorithm Materials Chemistry Physical and Theoretical Chemistry Ternary operation Ternary complex
Zdroj:	Physics and Chemistry of Liquids. 60:233-243
ISSN:	1029-0451 0031-9104
DOI:	10.1080/00319104.2021.1949011
Popis:	In this work we report the results of a speciation study on the ternary complexes present in the ternary Ni(II)- 1,10 phenanthroline (Phen)-amino acids and Ni(II)- 2,2-bipyridine (Bipy)-amino acids, with amino acids = aspartic acid (H2Asp), glutamic acid (H2Glu), histidine (H2His) and cysteine (H2Cys). The analysis involved the use of potentiometric data in 1 M NaCl aqueous solution at 25��C and a least-squares method (LETAGROP). The relative stability of the ternary complexes were compared with the corresponding binary complexes. The concentration distribution of various species formed in aqueous solution were evaluated as a function of pH. The binary complexes in the Ni(II) ��� Phe and Ni(II) ��� Bipy systems in 1 M NaCl aqueous solution at 25��C were also studied.
Databáze:	OpenAIRE
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